backup/com.wire.backup.envelope/HashData

HashData

internal data class HashData(val hashedUserId: UByteArray, val salt: UByteArray, val operationsLimit: ULong, val hashingMemoryLimit: Int)

Constructors

HashData

constructor(hashedUserId: UByteArray, salt: UByteArray, operationsLimit: ULong, hashingMemoryLimit: Int)

Types

Companion

object Companion

Properties

hashedUserId

val hashedUserId: UByteArray

The hashed ID of the user that originally created this backup. This hash is calculated using Argon2, with this salt, operationsLimit and hashingMemoryLimit. This array is HASHED_USER_ID_SIZE_IN_BYTES long.

hashingMemoryLimit

val hashingMemoryLimit: Int

Memory used by the hashing algorithm. See Libsodium's Documentation. This value has to be bigger than crypto_pwhash_MEMLIMIT_MIN.

operationsLimit

val operationsLimit: ULong

Represents the maximum amount of computations to perform. Raising this number will make the function require more CPU cycles to compute a key. See Libsodium's Documentation.

salt

val salt: UByteArray

The salt used in order to create the hashedUserId and used to derivate the encryption password to read/write the encrypted archive. This array is SALT_SIZE_IN_BYTES long.

Functions

equals

open operator override fun equals(other: Any?): Boolean

hashCode

open override fun hashCode(): Int